CCNA Access List Sim
Question
An administrator is trying to ping and telnet from Switch to Router with the results shown below:
Switch>
Switch> ping 10.4.4.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.4.4.3,timeout is 2 seconds:
.U.U.U
Success rate is 0 percent (0/5)
Switch>
Switch> telnet 10.4.4.3
Trying 10.4.4.3 …
% Destination unreachable; gateway or host down
Switch>
Click the console connected to Router and issue the appropriate commands to answer the questions.
Answer and Explanation
Note: If you are not sure about Access-list, please read my Access-list tutorial. You can also download this sim to practice (open with Packet Tracer) here: http://www.9tut.com/download/9tut.com_CCNA_Access_List_Sim.pkt
For this question we only need to use the show running-config command to answer all the questions below
Router>enable
Router#show running-config
Question 1:
Which will fix the issue and allow ONLY ping to work while keeping telnet disabled?
A – Correctly assign an IP address to interface fa0/1
B – Change the ip access-group command on fa0/0 from “in” to “out”
C – Remove access-group 106 in from interface fa0/0 and add access-group 115 in.
D – Remove access-group 102 out from interface s0/0/0 and add access-group 114 in
E – Remove access-group 106 in from interface fa0/0 and add access-group 104 in
Answer: E
Explanation:
Let’s have a look at the access list 104:
The question does not ask about ftp traffic so we don’t care about the two first lines. The 3rd line denies all telnet traffic and the 4th line allows icmp traffic to be sent (ping). Remember that the access list 104 is applied on the inbound direction so the 5th line “access-list 104 deny icmp any any echo-reply” will not affect our icmp traffic because the “echo-reply” message will be sent over the outbound direction.
Question 2:
What would be the effect of issuing the command ip access-group 114 in to the fa0/0 interface?
A – Attempts to telnet to the router would fail
B – It would allow all traffic from the 10.4.4.0 network
C – IP traffic would be passed through the interface but TCP and UDP traffic would not
D – Routing protocol updates for the 10.4.4.0 network would not be accepted from the fa0/0 interface
Answer: B
Explanation:
From the output of access-list 114: access-list 114 permit ip 10.4.4.0 0.0.0.255 any we can easily understand that this access list allows all traffic (ip) from 10.4.4.0/24 network
Question 3:
What would be the effect of issuing the command access-group 115 in on the s0/0/1 interface?
A – No host could connect to Router through s0/0/1
B – Telnet and ping would work but routing updates would fail.
C – FTP, FTP-DATA, echo, and www would work but telnet would fail
D – Only traffic from the 10.4.4.0 network would pass through the interface
Answer: A
Explanation:
First let’s see what was configured on interface S0/0/1:
Recall that each interface only accepts one access-list, so when using the command “ip access-group 115 in” on the s0/0/1 interface it will overwrite the initial access-list 102. Therefore any telnet connection will be accepted (so we can eliminate answer C).
B is not correct because if telnet and ping can work then routing updates can, too.
D is not correct because access-list 115 does not mention about 10.4.4.0 network. So the most reasonable answer is A.
But here raise a question…
The wildcard mask of access-list 115, which is 255.255.255.0, means that only host with ip addresses in the form of x.x.x.0 will be accepted. But we all know that x.x.x.0 is likely to be a network address so the answer A: “no host could connect to Router through s0/0/1” seems right…
But what will happen if we don’t use a subnet mask of 255.255.255.0? For example we can use an ip address of 10.45.45.0 255.255.0.0, such a host with that ip address exists and we can connect to the router through that host. Now answer A seems incorrect!
Please comment if you have any idea for this sim!
Other lab-sims on this site:
حسبي الله ونعم الوكيل
Will we just choose the write answer without making any configuration ?? because i have my ccna exam on Monday insha’allah :)
Please provide any update, any one took exam recently and saw any modification on the sim…
I am writing it on, March 27 / 28 2014. Insh’Allah
if I were you I would study from this website
Do anyone have a code for uploaded avanset vce file for ccna 200-120, please share with me on ozon3cal@yahoo.com I mean for vce mobile. Thanks
Hi,
Please send the latest CCNA dummies to me.(muhammadfirdaus1346@gmail.com)
reallt appreciate.thanks
i am taking my exam in two weeks wish me luck guys ;)
Please comment on Q no.3 from this access-list lab as it say no No host could connect to Router through s0/0/1 is it correct if someone has given exam recently please give correct ans i m going to take my ccna exam in next week??????????
يا جدعان ما حد يعبرنا
Hello All,
Can anyone please send the latest CCNA dumps on smile4ever65@yahoo.com. Really appreciate your help.
can i pass ccna by studying only dumps
please send me the latest dumps sirajkh786@gmail.com
Please send me the latest dumps mantash09@gmail.com
Please send me the latest dumps santovito.marco@gmail.com
Alhumdulillah I have passed CCNA 200-120 Score 917.
1. ACL 1 is same.
2. ACL 2 same but Ip Range diffrent and target Web Browser access Host B.
3. EIGRP same but Ip Range diffrent diffrent EIGRP 23.
Thanks 9tut……,
please tell me,,do we need to apply commands of Question 2 and 3 ??
Dear Tasnim:
1st: CCNA Access List Sim same lab.
2nd: EIGRP Lab:
R3>enable (you have to enter cisco as its password here)
R3#configure terminal
R3(config)#no router eigrp 22
R3(config)#router eigrp 23
R3(config-router)#network 192.168.60.0
R3(config-router)#network 192.168.70.0
R3(config-router)#no auto-summary
R3(config-router)#end
R3#copy running-config startup-config
R1>enable (you have to enter cisco as its password here)
R1#show running-config
R1#configure terminal
R1(config)#router eigrp 23
R1(config-router)#network 192.168.70.0
R1(config-router)#end
R1#copy running-config startup-config
3rd: CCNA Access List Sim 2
I forgot ip address but allow web browser access host B and host A,C,D is access deny.
Noor… using TAB in the exam…is permitted?
thnx a lot!
thanks Noor :)
Can any one email me the latest video training of labs i need it on urgent bases at haroon.talha@gmail.com
can any one help about CCNA dumps contact this email FB ID: Acha Bacha
intelligent_noor@hotmail.com.
NOOR congrats … Can we use ” ? ” while doing NAT/Acl/Eigrp LABS in the EXAM ????
farman, why are you worried about ? unable to understand, do your best preparation and rest is best of luck!!!!
we write ( conf t) or configure terminal
can any one help about CCNA dumps contact this email FB ID: shakhawat hossain or shakhawat.cse09@gmail.com
hello guys, i just made it today. score 945. this dums are hundred percent valid. i neglected the questions on syslog, netflow snmp and others in that domain because they were not in my study material but to my greatest surprise, i had bout 4 questions on those of which i believe i all failed.without which i would have made a greater score.
my advice for u who is to take the exam is to look for a study material on netflow, syslog, snmp and also answer all the dums from this site on that domain.
the sims were eigrp, acl1, acl2 with just ip add changes.
GOOD LUCK AS U PROCEED.
taking the exam tomorrow April 21 at 12:00 p.m I will tell you how hard would be. IF anybody has the latest dumps please email me ASAP to Jmerany@gmail.com
i m goinh to appear in the exams please help to attempt it
shahidn1987@gmail.com
did my test today, 972/1000
this was asked in the exam.
Passed my exam today, 917/1000. thank you 9tut.
CAN ANYONE HELP ME WITH AVANSETVCE FOR STUDIES DUMPS PLEASE….. SEND ….joelnilanla@hotmail.com
any one have latest dumps please email me dhaprashan@gmail.com..i am having my exam on next week…
can anyone help me in this simulation ,i downloaded acl2 but it doesnt have console pc not conected to router
anyone have the latest dumps please email unylinx@gmail.com
guys,
question 1 : the answer B seems correct too.
Could anyone help please ?
hicham, answer B will let telnet happen, as the deny will be outbound and the destination port on that direction is dynamic.
By the grace of ALLAH Just passed today….ACL 1 same, ACL 2 with 3rd modification (ip changes) and EIGRP with changes Ips.
Others from exam-collection
1. watson
2. Methew …enough.
Need any help contact on skype id azhar.hameed53
Best of luck …!!!
Hey this is my 2nd time taking the test.. i failed by 1 question.. taking exam again.. will the labs still be the same you think? acl 1 and acl 2 an eigrp? let me know..
Yes Peter…ACL1 ACL2 with 3rd modification and ips changes and EIGRP with AS 2 and ips changes…….best of luck…
please I need latest dumms on ccna. kindly send to ismailmorakinyo@yahoo.com
Pls I need latest dumps…..kindly and to adekunle_jamiu99@yahoo.com. ma exam is next week
anyone have the latest dumps please email hornella.ngongo@gmail.com
thx
Please send me the latest dumps. My email address is net.deployment@gmail.com.
Thanks
Hi All,
Does anyone know what is the total list of the sim’s that might be in the CCNA test?
Is it ACL,VTP and EIGRP only?
Thanks,
Hi
Can any body send me latest dumps at muneebejaz20gmail.com. I have an exam near by .
I would appreciate if it will be converted to PDF .
looking forward a positive response
thank you
In Acl sim do we have to configure the router or else we just want to select the right answers… plz any one help me. i got myy exam this week..
hi everybody,
anyone have the latest dumps please email david.cauvin@gmail.com
thank so lot.
download free dumps from
wurl.cc/52R
I got this also in today exam
If you look at the status of the interfaces you will see that ther s0/0/1 is down. Adding an ACL to this interface will not bring it up.
Sry i am wrong. S0/0/1 1 is down cause no device is connected to it. If we add ACl 115, the permit entry is wrong cause subnet is used instead wildcard. At the end of the ACL the unseeable entry deny any any will block all the traffic. That should be the reason for answer A.